Error: sampling collector failed to collect data because the selected event(s) did not occur

Error: sampling collector failed to collect data because the selected event(s) did not occur

<p>&nbsp; &nbsp;&nbsp; I am analyzing some executable files using VTune 9.1 performance analyzer. I am selecting counters to analyze particular events. After analyzing some executable files(5 second,10 second,15 second and 20 second&nbsp; data files), counters related memory load operations(MEM_LOAD_RETIRED.L2_HIT, MEM_LOAD_RETIRED.L2_MISS)&nbsp; are stopped working. An error has occured that is "Failed to create sampling data base. Probably .tb5 files are corrupted or don't exist". Earlier these counters related to memory operations were working properly for 5 second,10 second and 15 second&nbsp; data files.While analyzing the 20 second data file, this error occured . And now those two counters are not working for any of the data files. And leaving these two counters, remaining counters are working well now. Can you please help me to enable these two counters related to memory load operations to analyze the files better.</p>